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(parent: 0d207d2) | patch
powerpc/powernv/npu: Move tlb flush before launching ATSD
authorAlistair Popple <alistair@popple.id.au>
Fri, 11 Aug 2017 06:22:56 +0000 (16:22 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Fri, 1 Sep 2017 06:42:55 +0000 (16:42 +1000)
commitd0f945e2cb2feae8826765d542a13f8a30e5c57d
tree48ec20e36ee76c5303b88725a14e7c69f4fb45a6tree | snapshot
parent0d207d26d610416949582656a23d38e0506b1685commit | diff
powerpc/powernv/npu: Move tlb flush before launching ATSD

The nest MMU tlb flush needs to happen before the GPU translation
shootdown is launched to avoid the GPU refilling its tlb with stale
nmmu translations prior to the nmmu flush completing.

Fixes: 3c06842eef12 ("powerpc/powernv: Introduce address translation services for Nvlink2")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/platforms/powernv/npu-dma.c diff | blob | history
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